Filter.



PATENTED MAR. 19, 190.7.

c. M. SHILTZ.

FILTER.. APPLICATION FILED MAY 12, 1906.

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UNITED STATES rnfrniv'r 4opriep.

FILTER.

Specification of Letters Patent.

Patented March 19, 1907.

Application filed May 14,1906. Serial No. 316,652.

To @ZZ whom t may con/cern:

Be it known that I, CHARLES M. SHrLTz, a citizen of the United States, residing at Carrollton, in the county of Carroll and State of Ohio, have invented certain new and useful Improvements in Filters; and I do hereby declare that the following is a full, clear, and eXact description of the same, reference being had to the accompanying drawing, making a part of this specification, and to the numerals and figures of refe-rence marked thereon.

The present invention has relation to filters especially designed to be attached to a city-water-supply pipe at any desired and convenient place g and it consists in the novel arrangement hereinafter described, and particularly pointed out in the claim.

Figure 1 is a vertical longitudinal section. Fig. 2 is a transverse section on line 2 2, Fig. 1. Fig. 3 is a view showing the pressuredisk, a portion of its operating-rod, and the disk strainer. Fig. 4 is a detached view of the filter-coupling.

Similar numerals of reference indicate corresponding parts in all the gures of the drawing.

In the accompanying drawing, 1 represents a portion of the feed-pipe, to which is attached the elbow 2, or, if desired, the elbow 2 may be dispensed with and a filter-coupling 3 attached direct to the end of the feedpipe 1. The only object in providing an elbow is to bring the filter proper into a vertical position. The coupling 3 is provided with the integral perforated web 4 and the coupling screw-threaded upon its inner periphery upon opposite sides of the perforated web 4. y

The object and purpose of screw-threading the coupling is to provide a means for attaching the filter-casing 5 and the elbow 2 or the feed-pipe 1, as the case may be. The filter-casing 5 is formed of any desired size in cross-section and of any desired length; but in use the diameter `of the filter-casing need not exceed to any great extent the diameter of the feed-pipe. However, there should be some difference, so as to provide afilter-casing of sufficient size to hold the necessary amount of filtering material. Upon the top of the perforated web 4 is located the gauze disk 6, which gauze disk is formed of a size to properly cover the top of the perforated web 4. On the gauze disk 6 is located a quantity of .cotton or like fibrous material and such material that is capable of being compressed by pressure. Upon the top of the cotton or like material 7 is located a quantity of charcoal 8, and upon the charcoal is located a quantity of sand 7 a, preferably grit sand. Upon the top of the sand is located aquantity-of cotton or other fibrous material 9, which cotton is located between the top of the sand and the bottom or under face of the gauze disk 10. To the pressure-disk 11 is rotatably attached the screw-threaded rod 12, which screw threaded rod is extended upward through the cap 13, and is provided with the operating handle or knob 14.

It will be understood that by rotating the rod 12 in one direction will move the pressure-disk down or toward the web 4 and `by rotating the rod in the'opposite direction will move said pressure-disk away from the web 4.

The pressure-,disk is perforated in substantially the same manner as the web 4 and of course is so perforated for the purpose of allowing the free passage of water or other liquid. To the cap 13 is attached the elbow 15, and to the elbow 15 is attached the pipe 16, and to this pipe 16 is attached an ordinary faucet 17 However, the elbow 15, the pipe 16, and the faucet 17 are shown conventional, and ofcourse the precise arrangement shown is unnecessary.

It will be understood that by opening the faucet water is free to fiow through the perforated web 4, the gauze disk 6, the cotton 7, the charcoal 8, the sand 7, and the upper strata of cotton 9, the gauze disk 10 and the perforated pressure-disk 11, and thence into the chamber formed by the cap 13, and thence to the faucet 17. By moving the pressure-disk 1() downward or toward the web 4 the cotton at the top and bottom of the filter proper will be compressed, thereby increasing the solidity of the cotton or fibrousV substance, which in turn increases the filter- .ing efficiency in proportion to the degree of IOO IIO

elevate the pressure-disk 10 a sucient dis tance to remove all pressure, at which time water is free to ilow through the rilter proper,

the cotton offering little resistance to the f rapid ilow of water, and by relaxation of pressure the filtering materials are washed, so that when they are brought into normal position they will be in condition for use. Will therefore be readily seen that the iilter can be lushed or washed with little diHiculty and without disturbing any of the -filter elements.

For the purpose of preventing` the perforated disk 10 from rotating during the time the rod l2 is rotated said rod should be so with a perforated web located intermediate the ends of the coupling, a filter-casing secured to the coupling, a gauze disk located in contact and supported by the perforated web, astratum of cotton located upon and in contact with the gauze disk, a stratum of charcoal located above and upon the cotton, a stratum of sand located above the charcoal, and a stratum of cotton located above the sand, an adjustable perforated pressure-disk provided with a gauze disk upon its under side, a chambered cap secured to the upper end of the iilter-casing, a screwthreaded rod carried by the cap, said screw-threaded rod provided with a groove and tangs adapted to be bent into the groove, whereby the screwthreaded rod is rotatably connected to the pressure-disk, substantially as and for the purpose speci'lied.

In testimony that I claim the above l have hereunto subscribed my name in the presence of two witnesses.

CHARLES M. SHILTZ.

Witnesses J A. JEFFERS, F. l/V. BOND. 

